The AirTAC GFR30008LC2WT AirTAC Filter Regulator NPT1/4 5 um is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/4" ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR30008LC2WT is a size 300 filter regulator that removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is fitted with a 1/4 in NPT port, a 5 um filter element (the finer of the two published grades), a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and a round pressure gauge reading in psi. It is the low-pressure regulator type, intended for circuits that work below standard regulation ranges, and it includes a mounting bracket.
This is a genuine AirTAC part. The GFR series is available in sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, and with choices of drain type, filter grade, gauge style and scale, thread (PT standard, G and NPT as order options) and bracket. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR30008LC2WT AirTAC Filter Regulator NPT1/4 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Low-pressure type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, psi scale |
| Reflux valve | Not fitted |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. Air must not freeze in the unit. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| 08 | Port size PT1/4". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
Field order is size, port, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR300 · PT1/4" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-08 (two-unit set) |
Air-prep point for clamping fixtures and workholding cylinders on a CNC cell, where the 5 um element protects the clamp valves and the low-pressure regulator holds the circuit at the reduced pressure the fixtures are set up for.
Filter-regulated supply to cartoning and wrapping machines, where the differential-pressure drain keeps condensate off the machine's directional valves during shifts and the psi gauge gives operators a readable setpoint.
Bench-mounted regulation for pneumatic test rigs and pilot circuits that run at reduced pressures, with the bracket allowing fixed mounting and the 5 um grade keeping fine-metering components clean.
Size 300 with a 1/4 in NPT port suits lines running moderate air consumption; step up to size 400 or 600 where demand is higher, or down to 200 for compact circuits. This unit carries the 5 um element (code W) rather than the 40 um standard, which is the right choice where downstream valves and cylinders are sensitive to finer particles; both grades share the same water-removal function. The differential-pressure drain needs no operator attention, but a manual or automatic drain can be ordered instead. The round gauge in this configuration reads psi; square embedded gauges and MPa or bar scales are alternatives. NPT is an order option - PT is the catalogue standard thread - and the bracket is included. Because flow is published as curves and not a single rating, ask us to confirm sizing against your application before ordering.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as curves rather than a single rated figure, so there is no one number we can honestly quote. Send us your application details and we will confirm the relevant flow and datasheet figures for this 1/4 in NPT, size 300 unit on request.
The W in the code GFR30008LC2WT selects the 5 um filter element instead of the 40 um standard, and C2 selects the round gauge with a psi scale. Both are catalogue order choices: if you would rather have the 40 um grade, a square embedded gauge, or an MPa or bar scale, those variants are available in the same size 300 family.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.